Extension drawer slide



s. F. PRATT EXTENSION DRAWER SLIDE Dec. 9, 1941'.

Filed Aug. 16, 1940 2 Sheets-Sheet l Dec. 9, 1941. s. F. PRATT sxmnsron DRAWER SLIDE Filed Au 16, I940 2 Sheets-Sheet 2 Patented Dec. 9, 1941 "UNITE STAT ES T '0 PF f- LC E EXTENSION DRAWER. SLIDE Seely F. Pratt, Le .Roy, N; Y. assignor to Union Steel Chest Corporation, Le Roy, N. Y., acorporation of New York Application August 16, 1940, Serial N0..,352,966

7 Claims.

The invention relates to an extension drawer slide.

The object of the present invention is to im- JPI'OV'B the'construction of extension drawer slides and to provide a simple, practical and efficient --.extension drawer slide of strong, durable and eomparatively inexpensive construction adapted toenable the drawers of a cabinet to be firmly supported in a horizontal projecting position when the drawers are withdrawn far enough to permit inspection of their entire contents.

A further object of the invention is to eliminate the necessity of making separate parts and weld- ..ing or otherwise securing the same to a drawer and a cabinet for providing guideways to slidably receive a slide for supporting the drawer in its extended position.

It is also an object of the invention to enable the slide receiving guideways of the drawer and the cabinet to be stamped or otherwise formed pf the material of the drawer and the cabinet without afiecting the appearance of the drawer and thercabinet when the drawer is in .its closed agement with the stops of the drawerand the cabinet to enable the drawer and the slide to be =easily and-quickly removed from the cabinet when desired.

With these and other objects in view, the inyention consists in the construction .and novel combination and-arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims *heretoappended, it being understoodthat various changes in the form, proportions and minor de tails of construction-maybe resorted to without departing fromthe spirit or sacrificing any 'ofthe advantages of the invention.

.In the drawings:

Figure 1 is a plan view of a cabinet and a drawer provided with an extension slide constrncted in accordance with this invention, one of the drawers of the cabinet being in .an extendedposition.

' cabinet I.

on the line vI'l -3 of Figure 2.:

Figure l is a transverse sectional view taken ;on the line' .4-4 of Figure2.

Figure .5 is .a similar view taken on the line 5-5 of Figure .2.

Figurefi is a longitudinal sectional view-taken on the line 66 of Figure 1.

Figure 7 is a similar view taken on the line l1'of Figure l.

Figure 8 is an enlarged sectional view of the extension-slide with the parts arranged as shown in Figure 4 Figure '9 is a similar view with the parts arrangedas illustrated in Figure 5. v

Figure 1.0 is a perspective view of a fragmentar-y portion ofthe cabinet side including a limit stop employed in connection with the present invention.

In the accompanying drawings in which is illustrated a preferred embodiment of the invention, -I designates a slidestamped or otherwise formed from a single piece of sheet metal or-other suitable material and slidably mounted in upper and lower horizontally disposed facing channels or grooves 2 and 3 of a drawer 4 and upperand lower facing channels -.or grooves 5 and 6 of a The slide consists of a body portion or strip'and upper and lower reversely arranged channels I and 8 which are connected with the body portion of the slide by upper and lower horizontal longitudinal flanges 9 and It.

The intermediate portion of the slide is bowed laterally to form a central vertical portion H which is connected with upper and lower'vertical portions I2 of the slide by inclined portions IS. The upper and lower horizontal flanges 9 and ill of thegsli-de.laterallyloffset the reversely arranged channels or grooves! and ,8 from the body portion of the slide and the said-channels 1 and B face upwardly and. downwardly, respectively, to

receive ztheapproximate walls of the upper and lower grooves-or channels of the drawer and the cabinet. The upper and'lower grooves 'orchannels of the drawer andthecabinet provide guideportions of the upper and lower grooves or channels 2 and 3 of the drawer.

In formingthe upper downwardly facing channelorgmOYe 91.17116 drawer, thematerial atthe 'upper edge of the drawer is extended laterally to form the upper wall of the groove or channel and at the edge portion is bent downwardly into parallelism with the side of the drawer to form the outer wall of the groove or channel which receives the inner portion of the top of the slide and which conforms to the configuration of the same. By thus forming the upper slide receiving channel the upper side edges of the drawer are relieved of sharp edges and obviates the lining up and the making of and the securing of separate guide strips to the sides of the drawer.

The lower groove or channel 3 is formed from" metal partially severed from the side of the draw- I net side has the metal thereof partially severed at spaced points and bent'horizontally and then vertically to form the facing channels or grooves 5 and 6 which receive the outer portions of the top and bottom of the slide.

The single piece slide is material from the standpoint of production and the formation of the slide receiving guideways integrally with the drawer and the cabinet obviates the necessity of providing separate parts and welding or otherwise securing the same to the drawer and the cabinet for providing the upper and lower grooves or channels of the slide receiving guideways.

In order to limit the outward sliding movement of the drawer and the slide, the drawer and the cabinet are provided with stops l6 and l1, ;and the slide is equipped with a single spring or ;resilient member l8 having portions l9 and 20 jlocated at opposite sides of the slide and se- .cured at an intermediate point to the latter and provided at its terminals with catches 2| and 22 :for engaging the stops of the drawer and the cabinet. The central portion of the spring may be secured to the slide by a rivet 23 or other suit- ;able fastening means to the vertical portion ll of the slide, and the said vertical portion is provided with an opening 24 through which the spring extends, in order to arrange its portions l9 and 20 at opposite sides of the slide.

this position it is firmly supported and is withdrawn sufiiciently to enable its entire contents to be inspected.

What is claimed is:

1. In a device of the character described, the combination with a cabinet and a drawer provided with guideways, of a slide consisting of a body portion, upper and lower reversely arranged channels located at one side of the body portion of the slide and upper and lower horizontally disposed laterally projecting flanges connecting the channels with the body portion of "the slide and offsetting the channels from said body portion, said channels and horizontal flanges 'being mounted in the guideways of the drawer and the cabinet for sliding movement to permit The catches 2| and 22 are approximately V-,

shaped and provide shoulders for engaging the stops I8 and ll of the drawer and the cabinet. The terminal portions 25 and 26 of the resilient member or spring are extended beyond the catches 2| and 22 and are deflected slightly in a lateral direction to enable them to be readily engaged by the blade of a screwdriver or other instrument for disengaging the spring member from the stops l6 and H to permit removal of the drawer and the slide, should the same become necessary or desirable.

In the operation of pulling the drawer out of the cabinet from the position shown in the lower portion of Figure 2 of the drawings to the position illustrated in the upper portion of the said an extended sliding movement of the drawer.

2. In a device of the character described, the combination with a cabinet and a drawer provided with guideways, of a slide comprising a body and upper and lower reversely arranged channels located at one side of the body portion and slidably mounted in the guideways of the drawer and the cabinet, said body being bowed laterally at an intermediate point, a resilient member mounted on the bowed portion of the body of the slide and having portions operating at opposite sides of the slide and stops projecting from the drawer and the cabinet and arranged to be engaged by said portions of the resilient member for limiting the movement of the-slide and the drawer. v

3. In a device of the character described, the combination with a cabinet and a drawer provided with guideways, of a slide comprising a body provided intermediate of its ends with an opening and having upper and lower reversely disposed channels located at one side of the body and slidably mounted in the guideways of the drawer and the cabinet, a resilient member secured at an intermediate point to the slide and extending through the opening thereof and having portions operating at opposite sides of the slide and stops projecting from the drawer and the cabinet and arranged to be engaged by the portions of the resilient member at opposite sides of the slide for limiting the sliding movement of the drawer and the slide.

4. In a device of the character described including a cabinet having at the side upper and lower opposed guide channels providing a guide way and formed by metal partially severed from the side of the cabinet at spaced points and bent substantially horizontally and vertically to form the upper and lower channels, a drawer similarly provided at its side with upper and lower opposed guide channels providing a guideway and formed by metal of the drawer side bent horizontally and vertically to form the upper and lower channels and a slide mounted in the guideways 'of the drawer and the cabinet, said slide including up-v per and lower oppositely and outwardly directed guide channels, each of said latter channels straddling a vertical portion of one of the channels formed on the cabinet side and one of th channels formed on the drawer side.

5. A device of the character described including a drawer having upper and lower integral facing channels providing a guideway, the'metal at the upper edge of the drawer being extended laterally and downwardly to form said upper channel and the metal being partially severed from the drawer and bent laterally and upwardly to form the lower channel, a cabinethaving at the side upper and lower facing channels providing a guideway and formed by metal partially severed from the side of the cabinet at spaced points and bent substantially horizontally and vertically to form the upper and lower channels, a slide consisting of a single piece of metal and composed of a body bowed laterally intermediate of its top and bottom portions, upper and lower reversely disposed channels and laterally disposed horizontal flanges connecting the channels with the body of the slide, the channels and the horizontal connecting flanges being slidably mounted in the upper and lower channels of the drawer and the cabinet, and means for limiting the sliding movement of the drawer and the slide.

6. A device of the character described comprising a drawer having upper and lower integral facing channels providing a guideway, the metal at the upper edge of the drawer being extended laterally and downwardly to form said upper channel and the metal being partially severed from the drawer and bent laterally and upwardly to form the lower channel, a cabinet having at the side upper and lower facing channels providing a guideway and formed by metal partially severed from the side of the cabinet at spaced points and bent substantially horizontally and vertically to form the upper and lower channels, a slide consisting of a single piece of metal and composed of a body bowed laterally intermediate of its top and bottom portions, upper and lower reversely disposed channels and laterally extending longitudinally disposed horizontal flanges connecting the channels with the body of the slide, the channels and the horizontal connecting flanges being slidably mounted in the upper and lower channels of the drawer and the cabinet, a single continuous resilient member secured between its ends to the slide and having portions located at opposite sides of the slide, and stops projecting from the drawer and the cabinet and arranged to engage the portions of the resilient member at opposite sides of the slide for limiting the outward movement of the slide and the drawer.

7. In a device of the character described, a cabinet having a side formed with a guideway, a drawer slidably disposed in the cabinet and having a side formed with a guideway, a single unitary channel-shaped slide member disposed between th drawer side and the cabinet side and having side portions a part of which projects into the cabinet slideway and a part of which projects into the drawer slideway, said slide memher also including a vertical web disposed intermediate the drawer side and the cabinet side and spaced from each of said sides, a limit stop onthe drawer side, a limit stop on the cabinet side, there being an opening in said web medially thereof and a unitary integral leaf spring extending through said opening in the vertical web and having operating portions on each side thereof, means anchoring the spring to the web at a medial point on the former, and a stop engaging lug formed on the spring adjacent each end thereof, said lugs projecting through said web in opposite directions to engage their respective stops.

SEELY F. PRATT. 

